<template>
  <!-- 底部部分 -->
  <footer class="footer">
    <span class="todo-count" v-show="total"
      ><strong>{{ total }}</strong
      >剩余</span
    >
    <ul class="filters">
      <li>
        <a
          :class="{ selected: type === 'all' }"
          href="#/"
          @click="changeType('all')"
          >全部</a
        >
      </li>
      <li>
        <a
          :class="{ selected: type === 'active' }"
          href="#/active"
          @click="changeType('active')"
          >进行中</a
        >
      </li>
      <li>
        <a
          :class="{ selected: type === 'completed' }"
          href="#/completed"
          @click="changeType('completed')"
          >已完成</a
        >
      </li>
    </ul>
    <button class="clear-completed" @click="clearList">清除已完成</button>
  </footer>
</template>

<script>
export default {
  name: 'TodoFooter',
  props: {
    total: {
      type: Number,
      required: true
    },
    type: {
      type: String,
      required: true
    },
  },
  data () {
    return {}
  },
  methods: {
    //清除功能
    clearList () {
      this.$emit('clearList')
    },
    //过滤
    changeType (type) {
      this.$emit('changeType', type)
    }
  }
}
</script>

<style scoped lang="less"></style>
